Unaudited Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020
Revenue:
Total revenue	$ 1,057,130	$ 964,134	$ 3,051,774	$ 2,659,842
Cost of revenue:
Amortization of intangible assets	11,870	13,718	35,164	40,732
Total cost of revenue	205,066	193,008	627,051	570,141
Gross margin	852,064	771,126	2,424,723	2,089,701
Operating expenses:
Research and development	371,146	322,602	1,090,959	939,456
Sales and marketing	171,428	156,456	514,810	455,511
General and administrative	83,846	73,516	234,028	204,734
Amortization of intangible assets	8,570	9,931	25,273	29,545
Restructuring charges	15,151	(1,977)	15,151	36,446
Total operating expenses	650,141	560,528	1,880,221	1,665,692
Operating income	201,923	210,598	544,502	424,009
Other income (expense), net	11,414	26,256	61,934	22,584
Income before income taxes	213,337	236,854	606,436	446,593
Provision (benefit) for income taxes	14,945	(16,057)	51,214	(20,299)
Net income	198,392	252,911	555,222	466,892
Net income (loss) attributed to non-controlling interest	(254)	0	(847)	0
Net income attributed to Synopsys	$ 198,646	$ 252,911	$ 556,069	$ 466,892
Net income per share attributed to Synopsys:
Basic (in USD per share)	$ 1.30	$ 1.67	$ 3.64	$ 3.10
Diluted (in USD per share)	$ 1.27	$ 1.62	$ 3.54	$ 3.01
Shares used in computing per share amounts:
Basic (shares)	152,635	151,352	152,619	150,731
Diluted (shares)	156,907	155,973	157,158	155,074
Time-based products
Revenue:
Total revenue	$ 665,563	$ 612,065	$ 1,945,647	$ 1,758,601
Cost of revenue:
Cost of revenue	127,592	118,478	389,677	344,469
Upfront products
Revenue:
Total revenue	203,301	210,931	586,798	491,417
Maintenance and service
Revenue:
Total revenue	188,266	141,138	519,329	409,824
Cost of revenue:
Cost of revenue	$ 65,604	$ 60,812	$ 202,210	$ 184,940